MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Blighted ovum
A fertilized ovum (egg) that did not develop or whose development ceased at an early stage, before 6 or 7 weeks of gestation. On the ultrasound examination of a blighted ovum, only the gestational sac that normally surrounds the embryo can…
Read the definitionRandom terms
Show more- Intrauterine In the uterus (the womb). As opposed to extrauterine: outside the uterus. For example, normal pregnancies are…
- Pathobiology Pathology, with emphasis on the pathophysiological and pathogenetic mechanisms underlying human disease
- Xanthoma, disseminatum A type of xanthoma characterized by orange-to-brown nodules on the skin or mucus membranes
- Islets of Langerhans Known as the insulin-producing tissue, the islets of Langerhans do more than that. They are groups of…
- Disease, Hodgkin (adult) A type of lymphoma (cancer of the lymphatic system). The most common symptom is painless swelling of the…
- Molecule The smallest unit of a substance that can exist alone and retain the character of that substance.
- Deafness, congenital Deafness, congenital: Loss of hearing present at birth. Congenital deafness contrasts to acquired deafness…
- Sternutator Something that causes a sneeze. From the Latin sternutatio (sneeze). See also: Sternutation
- Klumpke paralysis See: Klumpke palsy
- Pharmacopoeia An official authoritative listing of drugs. Aspirin has, for example, long been in the pharmacopoeia. By…
- Palatine Anatomically, pertaining to the palate. For example, the palatine bone
- Expiration date The date for a drug estimated for its shelf life with proper storage in sealed containers away from harmful…